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Why is the bulb evacuated?

Updated: 12/11/2022
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13y ago

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If they were not evacuated of all outside air, the filament will burn up in seconds because the air Will cause Resistance, thus the filament will burn brighter and brigther tyring to burn off the air until it opens. (blown bulb)...

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13y ago
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Q: Why is the bulb evacuated?
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